COLOR BLINDNESS
What Does It Look Like?
Ever wondered what the world looks like to people
with color blindness? Curious minds often wish to
see through the eyes of others. Check out the photos
below to better understand and empathize with fellow
travelers in life.
Normal Vision
As designers, we have special interest in color
blindness — more correctly called “Color
Vision Deficiency” and more properly called
Dyschromatopsia — as we work daily with colors.
We can better provide for those with color vision
deficiencies by taking it into consideration as
we design our websites, ads, illustrations, logos,
typography or any visual communications.
Protanomaly
Protanopia
Deuteranomaly
Deuteranopia
Tritanomaly
Tritanopia
Achromatomaly
Achromatopsia
Photos Show Vision Types
Photos below show types of color blindness accessed
on the ColorJack “Vision” menu:
The less severe type, Anomalous Trichromacy, includes:
• Protanomaly - reds appear weak
• Deuteranomaly - greens appear weak
• Tritanomaly - very rare, blues appear weak
The moderately severe type, Dichromacy, includes:
• Protanopia: reds are greatly reduced
• Deuteranopia - greens are greatly reduced
• Tritanopia - rare; blues are greatly reduced
The most severe type, Monochromacy, is very rare: all,
or most, color vision is lacking: Rod Monochromacy
(Achromatopsia) and Achromatomaly.
The “Customaly” option offers the opportunity to
create your own custom vision deficiency! :o)
Causes of Color Blindness
Color blindness is usually passed on at birth, but
can come about through illnesses or accidents.
Causes are generally related to the eye’s retinal cones
being defective or absent. Explore deeper into color
blindness at Wikipedia, U of I Eye Center, and Health
A to Z.
—BD